Answer:
Explanation:
a) Air pollution
b) It can cause climate change, respiratory problems etc
c)Winter. More energy is being used in the winter to heat homes, offices, businesses etc.
Which two minerals can be scratched by a knife but not copper coin?
True or False?
Density of ocean water is not affected by salinity (salt content).
Answer:
false
Explanation:
Answer: yes it its true.
Explanation: I just see that in a exam